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International HS 2022 reference
3811.21

Lubricating oil additives; containing petroleum oils or oils obtained from bituminous minerals

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Related classifications

3811.11

Anti-knock preparations; based on lead compounds

3811.19

Anti-knock preparations; other than those based on lead compounds

3811.29

Lubricating oil additives; not containing petroleum oils or oils obtained from bituminous minerals

3811.90

Oxidation and gum inhibitors, viscosity improvers, anti-corrosive preparations, other prepared additives for mineral oils or liquids used as mineral oils (including gasoline), n.e.c. in heading no. 3811

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